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Finding the Fourth Proportional to 186,311.28, 279,549.98 and 67,954.95

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Solution

The fourth proportional to 186,311.28, 279,549.98 and 67,954.95 is: 101,962.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,311.28 : 279,549.98 = 67,954.95 : x
  2. Step 2: Convert to fraction form
    186,311.28/279,549.98 = 67,954.95/x
  3. Step 3: Cross multiply
    186,311.28x = 279,549.98 × 67,954.95
  4. Step 4: Simplify right side
    186,311.28x = 18,996,804,573.63
  5. Step 5: Solve for x
    x = 18,996,804,573.63/186,311.28
  6. Step 6: Final answer
    x = 101,962.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.